private static PdfDocument Load(IWin32Window owner, Stream stream, string password)
{
try
{
while (true)
{
try
{
return(new PdfDocument(stream, password));
}
catch (PdfException ex)
{
if (owner != null && ex.Error == PdfError.PasswordProtected)
{
using (var form = new PasswordForm())
{
if (form.ShowDialog(owner) == DialogResult.OK)
{
password = form.Password;
continue;
}
}
}
throw;
}
}
}
catch
{
stream.Dispose();
throw;
}
}
private void Open_Click(object sender, EventArgs e)
{
if (ofdOpen.ShowDialog(this) != DialogResult.OK)
{
return;
}
while (true)
{
try
{
c1PdfDocumentSource1.LoadFromFile(ofdOpen.FileName);
return;
}
catch (PdfPasswordException)
{
string password = PasswordForm.DoEnterPassword(ofdOpen.FileName);
if (password == null)
{
return;
}
c1PdfDocumentSource1.Credential.Password = password;
}
catch (Exception ex)
{
MessageBox.Show(this, ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
}
}
public static string DoEnterPassword(string fileName)
{
using (PasswordForm f = new PasswordForm())
return(f.EnterPassword(fileName));
}